Vehicle Security System

Abstract

A vehicle security system for improving security. A portable device generates a wireless signal containing a first ID code. A verification device stores a second ID code and a first control ID code, receives the wireless signal from the portable device and performs verification with the first and the second ID codes. A controller stores a second control ID code, receives the first control ID code from the verification device, and performs verification with the first and the second control ID codes. The controller controls a control subject such as a door lock when verification of the first and second ID codes and verification of the first and second control ID codes are established. When a deletion operation is performed, the second ID code is deleted from the verification device and the first or second control ID code is invalidated.

1 . A vehicle security system for use in a vehicle, the system comprising:
 a control subject installed in the vehicle;   a portable device which generates a wireless signal containing a first ID code;   a verification device which stores a second ID code and a first control ID code, receives the wireless signal from the portable device, and performs verification with the first and second ID codes; and   a controller which stores a second control ID code, receives the first control ID code from the verification device, and performs verification with the first and second control ID codes, the controller controlling the control subject when verification of the first and second ID codes is established and verification of the first and second control ID codes is established;   wherein the verification device deletes the second ID code from the verification device when a deletion operation is performed and invalidates at least either one of the first and second control ID codes.   
   
   
       2 . The vehicle security system according to  claim 1 , wherein the verification device stores a new second ID code when a registration operation is performed and validates the first and second control ID codes when a validation operation is performed so that the control subject becomes controllable with the new second ID code. 
   
   
       3 . The vehicle security system according to  claim 2 , wherein, the verification device invalidates the validation operation until the registration operation stores the new second ID code in the verification device  4 . 
   
   
       4 . The vehicle security system according to  claim 2 , wherein:
 the vehicle includes a vehicle device which undergoes a predetermined operation; and   the verification device recognizes the predetermined operation performed on the vehicle device as the validation operation.   
   
   
       5 . The vehicle security system according to  claim 2 , further comprising:
 an external device communicable with the verification device;   wherein the verification device performs communication with the external device and receives a signal corresponding to the validation operation from the external device.